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Workman 200 Spray System
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Spray System
Pressure Dampener
The pressure dampener is mounted to the pressure line
at the spray pump (Fig. 4) and is used to smooth system
pressure pulsation. Adjust air pressure on the pressure
dampener from 12 to 15 PSI (.82 to 1.03 bar).
IMPORTANT: Any fluid in the pressure dampener
will include spray system chemicals so take neces-
sary precautions when working with the dampener.
Use appropriate protective equipment: protective
clothing, chemical resistant gloves, and eye protec-
tion.
If fluid is present when pressure in the dampener is
checked, the diaphragm in the pressure dampener is
damaged and should be replaced.
Dampener Service (Fig. 5)
IMPORTANT: Make sure to neutralize and remove
chemicals from pump and hoses before loosening
and removing spray system components.
1. Loosen and remove cap screws and nuts that secure
diaphragm between housings.
2. Remove diaphragm from dampener.
3. Replace diaphragm and reassemble dampener.
1. Spray pump 2. Pressure dampener
Figure 4
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1. Spray pump
2. O–ring
3. Hex nut (12 used)
4. Rear housing
5. Diaphragm
6. Front housing
7. Cap screw (12 used)
8. Air valve
Figure 5
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Spray
System